Sheet collecting, associating, and folding machine.



H. IVI. BARBER.

SHEET COLLECTING, ASSOCIATING, AND FOLDING MACHINE.

APPLICATION FILED NOVl I. 1912.

Patented July 27, 1915.

9 SHEETS-,SHEET I.

H. M. BARBER.

SHEET COLLECTING, AsscCIATINC, AND FOLDING MACHINE.

APPLICATION FILED NOV. I', i912.

Patented July 27, 19K).

9 SHEETS-SHEET 2.

i* @In H. M. BARBER.

SHEET COLLECTlNG,"ASSOCIATING, AND FOLDING MACHINE.

' APPLICATION msn Nov.1,1912.

1,148,003. Patented my 27, 1915.

Q N E Q. W E27/@Hrte H. M. BARBER.

SHEET COLLECTING, ASSOCIATING, AND FOLDING MACHINE.

APPL1CAT|0N HLED Nov.1.1912.

I1,148,003.. Patented July 27, 1915.

9 SHEETS-SHEET 4.

--illm- H. IVI. BARBER. SHEET COLLECTING, ASSCCIATINC, ANC FCLCINC MACHINE.

APPLICATION FILED NOVI I, I9I2.

Patented July 27 9 SHEETS-SHEET 5.

ml, V,

H. II/I. BARBER.

SHEET COLLECTING, ASSCCI-ATINC, ANI) FOLDING MACHINE.

APPLICATION FILED NOV. 1912. L

Patented July 27, 1915.

9 SHEETS-SHEET 6.

H. M. BARBER. SHEET COLLECTING, ASSOCIATING, AND FOLDING MACHINE.

APPLICATION FILED NOV. Il 1912.

Patented July 27, 1915.

9 SHEETS-SHEET 7.

E AL

H. IVI. BARBER.

SHEET COLLECTING, ASSO'CIATING, AND FOLDING MACHINE.

APPLICATION FILED NOV. Il |912. 1,148,003. Patented July 27,1915.

9 SHEETS-SHEET 8.

.lll

Il""llllllnu H. M. BARBER.

SHEET COLLECTING, ASSOCIATING, AND FOLDING MACHINE.

APPLICATION FILED N ov.1.1912.

l 1,148,003. E n Patented July 27, 1915.

9 SHEETS-SHEET 9.

UNITED STATES PATENT ormoni.

HOWARD M. BARBER, OF STONINGTON, CONNECTICUT, ASSIGNOR, BY MESNE ASSIG'N-v MENTS, TO C. B. COTTRELL & SONS COMPANY, OF NEW YORK, N. Yi, A CORPORATION 0F DELAWARE.

Specification of Letters Patent.

Patented July 27, 1915.

Application led November 1, 1912. Serial No. 729,001.

T0 all whom it may concern Be it known that I, HOWARD of Stonington, in the county of New London and State of Connecticut, have invented a new and useful Improvement in Sheet Col- This invention consists more particularly. in certaln improvements 1n sheet'collecting,

associating and folding machines whereby a plurality of sheets may be cut from the main web, collected and thenr associated with sheets fed from extra sources of sheet supply such as cover and insert sheets and the so associated main and extra sheets slit longitudinally into two groups'and the two groups led transversely in opposite directions, said groups being separately subjected to stitching and folding operations, and then delivered from the machine to different points.

In the accompanying drawings, Figures 1, 2 and 3 combined illustrate in front elevation so much'of a sheet collecting, associating and folding machine, embodying my invention as is necessary for a completeunderstanding of the relative arrangement vof the several mechanisms, Figs. 4 and 5 combined illustite the machine in side elevation, 6 is a detail section showing the calm/mechanism for controlling the grippers on one of the male folding cylinders, Fig. 7

is a detail section showing the cam mechanism for operating the conducting blade on one .of said male folding cylinders. Fig. 8 is a diagrammatic section through the portion of .the machine which is directed to the collection. 'association and slitting of the main multi-cover and multi-insert sheets, Fig. 9 is M. BRBER, a. citizen of the United States, and resident a diagrammatic section through the portion of the machine which is directed to the stitching, folding and delivering of one group of main cover and insert sheets, Fig. 10 is a detail view of the cam mechanism for controlling the operation of the grippers on the associated group transfer' cylinder, Fig. 11 is a detail section showing the cam mechanism for operating the folding jaws of one of the female folding cylinders, Figs. 12, 13 andv 11 are detail sections showing the cam mechanisms for feeding in, associating and slitting the main multi-cover and multi-insert sheets, Fig. 15 is a detail section showing the driving connection between certain of the parts, and Fig. 16 is a detail plan of the irregular drive for the stitcher mechanism. l

The main web is denoted by 1 and the two sources of extra sheet supply by 2 and 3. The source 2 is arranged for feeding in multi-insert sheets and the source 3 is arranged for feeding in multi-cover sheets.

The main web 1 is fed to the coacting rotary transverse cutters 4 and 5 by the feed rollers 6, 7, pulleys S, 9, and tapes 10. The main sheet transfer cylinder is denoted by 11 and its two sets of grippers by 12 and 13. iruides 14, 15, are arranged to direct the sheets from the rotary cutters et, 5, to the main sheet transfer cylinder 11 and the disks 16 mounted on the shaft 17 serve to direct the advance edges of the sheets into grippers 12 and 13 on The sheet collecting cylinder is denoted by 2l and its three sets of grippers by 25. 2G,

and 27. The sheet delivery cylinder is denoted by 23 and its set of grippers by 29. The slitter, for dividing the collected and associated main, multi-cover and multi-insert sheets, is denoted by 30 and it is arranged to slit the said sheets onthe delivery'cylinder 28.

The shaft of the transfer cylinder 11 is denoted by 31, of the transfer cylinder 18 by 32, and of the transfer cylinder 20 by 33. The shaft of the collecting cylinder 24 is denoted by 34 and the shaft of the delivery cylinder 28 by 35. The shaftbf the-slitter 30 is denoted by 36. 1,/

Springpressed rollers 37,1 38, are arranged to coact with the collecting cylinder 24; spring-pressed rollers 39, 40, are arrangedl to coact with the transfer cylinders 18 and 20, and spring-pressed rollers 41 are arranged to coact With the delivery cylinder 28 for holding the sheets on their respective cylinders during their passage through this part of the machine.

The table for receiving the two groups of main cover and insert sheets from the delivery cylinder 28 is denoted'by 42. l

.The two groups of sheets are taken fromthe table 42 in opposite directions in paths transverse to the previous travel of the sheets by -two sets of mechanisms which are identical except that they are made to operate in opposite directions. One only of said sets of mechanisms will therefore be described speciically herein. f

An inclinedv stitcher table is denoted by 43. A. stitcher 44 of well known or` approved construction may be used for stitching the group of sheets on the table 43. A sheet stop 45 is provided for the stitcher` table 43. A transfer cylinder 46 is interposed between thestitcher table 43 and the table 42, which cylinder is provided with a set of grippers 47. Spring-pressed rollers 48 are arranged in position to coact with the transfer cylinder 46 for keepingJ the sheets on the cylinder as they are traveling from the table 42 onto the table 43. The transfercylinder shaft is denoted by 49.

The male folding cylinder is denoted by '50, its set of grippers by 51, its tuckingblade for receiving the sheets from the carriers feo 57, 59, which dropper mechanism may be of any well known or approved form, such, for instance, as that shown in United States Letters Patent No. 738778, dated September 15, 1903.

The tapes 63 of an endless delivery carrier pass around pulleys 64, 65, which carrier isarranged to receive the sheets as they are released from the dropper mechanism 62.

Proceeding to describe the driving counection between the several parts, the shaft 66 driven from the press drives the verti- 76 which meshes with the gear 75 and. also with a gear 77 on the slitter shaft 36 and with a gear 78 on the collecting cylinder shaft 34. This gear 78 meshes with a gear 79 on the multi-cover sheet transfer cylinder 20 and also with a gea-r 80 on the main sheet transfer cylinder shaft 31.

The gear 80 meshes with a gear 81 on the disk shaft 17 and drives one of the rotary cutters through the gears 82, 83. These two rotary cutters are connected through the gears 8 4, 85. The main web feeding mechanism is driven through the train of gearing 86, 87, 88, 89, 90, 91.

The cam shaft 92 is driven from the shaft l 32 through the gears93, 94, and the cam shaft 95 is driven from the shaft 33 through the gears 96, 97.

The shaft 56 of the female folding cylinder 54 is driven from the main drive shaft 66 through the train of gears 98, 99, 1.00, 101, 102. The gear 102 on the shaft 56 of the female folding cylinder meshes with a gear'103 on the shaft 53 of the male folding cylinder. It also meshes with a gear 104 on the shaft of the pulleys 61 of the tape carrier 59. The gear 105 on the shaft of the pulleys 58 of the'tape carrier 57 is driven from the gear 102 through the gear 106. The shaft .49 of the transfer cylinder 46 is driven from the shaft 56 of the female folding cylinder 54 through the gears 107,

08. nism is driven from the shaft 49 of the transfer. cylinder 46 through the train of gears 110, 111, 112, 113. The shaft 114 of the spring-pressed rollers 48 is driven from the gear 110 through the gear 115. The cam shaft 116 is driven from the shaft 53 of the male folding cylinder 50 through the gears The shaft 119 of the dropper mechanism is driven from the gear 118 through the gears 120, 121. The stitcher drive includes the bevel gears 122, 123, on the shaft 109 whichV mesh with bevel gears 124, 125, on stud shafts 126, 127, which stud shafts are connected with the stitcher shafts 128, 129, by elliptic gears 130, 131, and 132,133,1'espectively, so that the movement of the. stitchers is accelerated during the staple driving and clenching operation. thereby reducing the time required for this operation to a mini- The shaft 109 of the stitcher mechamum. and increasing the time for subsequent,.-

operations.

The several cam mechanisms are 'constructed, arranged and operated as follows:

A fixed cam 134 is arranged to open the grippers 12 and 13 on the main sheet transfer cylinder 11 for receiving the sheets cut from the main Web and a fixed cam 135 is arranged to open the said grippers 12 and 13 at the proper. times for transferring the sheets to the grippers 25, 26, and 27, on the collecting cylinder 24. A fixed cam 136 is arranged in position to successively open the grippers 25, 26, 27, to receive the sheets from the grippers 12 and 13 of the transfer cylinder 11. A movable cam 137 controlled by a cam 138 on the shaft 95 is arranged to open the grippers of the collecting cylinder` 24 everyv one and one-third revolutions of said cylinder for receiving the multi-cover sheets from the grippers 21 on the transfer cylinder 20. A movable cam 139 controlled by a cam 140 on the cam shaft 95 is arranged to open the grippers 25, 26, 27, every one and one-third revolutions of the collecting cylinder 24 for transferring the associated, main and multi-insert sheets to the grippers 29 on the delivery cylinder 28. A fixed cam 141 is arranged to `open the grippers29 on the cylinder 28 at Athe proper time to deliver the separated groups of main, cover and insert sheets onto the table 42 and keep the grippers open to receive the associated, main and multi-insert sheets from the collecting cylinder 24. .A fixed cam 142 is arranged to open-the grippers 29 on the cylinder 28 at the proper time to receivea multi-insert sheet from the grippers 19 on the transfer cylinder 18.

The grippers 21 on the multi-insert sheet transfer cylinder 20 are opened every second revolution of said cylinder' to receive a multiinsert sheet by the following cam' mechanism: A tumbler cam 143 on the shaft of the grippers 21 engages the tumbler pins 144, 145, every second revolution of the cylinder 2O for opening the grippersto receive the sheet and closing'the grippers on the advance edge of the sheet/"These pins 144, 145, are moved into and ut of their operative position by theyoke 146, lever 147 and cam 148. Similarly, the grippers 19 on the multi-covels/het transfer cylinder 18 are opened every econd revolution of the cylinder 18 tri-receive a multi-cover sheet, their actuating mechanism including the tumbler cam/'149, the pins 150, 151, yoke 152, lever 153` and cam 154. The grippers 21 on the cylinder 20 are opened every second revolution of said cylinder to transfer' the multi-' insert sheet to one of the grippers 25, 26, 27,

on the collecting cylinder 24 by providing a movable cam 155 moved into and out of operative position by the cam 156 on the shaft 95. Similarly. thegrippers 19 of the cylinder 18 are opened every second revolution of the cylinder to transfer a multi-cover sheet to the grippers 29 on `the delivery c vlinder 28 by means of a movable cani 157 moved into and out of its operative position by the cam 158 on the shaft 92.

The sheet stop 23 for the multi-cover' sheets is opened every second revolution of the cylinder 20 to permit the grippers 21 to grasp the' advance 'edge of a sheet, the mechanism for opening said sheet stop including a cam 159 on the shaft 95 and its connections 160, 161, 162. Similarly, the sheet stop 22 for the multi-insert sheets is opened-every second revolution of the cylin- A der 18 to permit the grippers 19 to grasp the advance edge of a sheet, the mechanism for opening said sheet stop including a cam 163 on the shaft 92 and its connections 164, 165, 166.

-, The grippers 47 of the associated group transfer cylinder 46` are opened and closed -aoy every revolution of the transfer cylinder 46.l`

The sheet stop'45 for the stitcher table 43 is opened for transferring the control of the stitched group of sheetsto the grippers 51 on the male folding cylinder 50 by means of a cam 170 on the shaft 116 and its neetions 171, 172.

The grippers' 51 of the cylinder 50 are opened to receive the group* of sheets from the stitcher table and closed on said group by the following tumbler cam mechanism,

arranged to operate every second revolution of the cylinder 50. The shaft of the grippers 51 is provided with a tumbler cam 173, which is arranged to engage the tumbler pin 174 for closing the grippers and the tumbler pin 175 for opening the grippers. These pins are thrown into and out of their operative position by the yoke 176, lever 177 and` cam 178 on the shaft 116.- The grippers 51 are also opened to release the advance ledge of the group of sheets to permit the folding off of said group when the tumbler cam mechanisml is out lofoperation by providing an adjustable stationary cam 189 which engages the stud or roller 190 on the arm 191 of the grippers 51.

The movement of the floating flicking blade 52 on the cylinder 50 is controlled by the cam 179. lever arm 180 and its stud or A COTI- folding operation. A iXed cam 184 is provided for opening the folding jaws 55 to deliver the folded group of sheets or signature between the carriers 57, 59, to be transferred by them to the dropper delivery 62. In the present instance, a step by step movement of the endless delivery carrier 63 is obtained by means of a pawl and ratchet 185, 186, and a crank andpitman connection 187, 188, with the shaft 116.

The operation ofthe machine is as follows: The main web is fed down between the rotary cutters 4 and 5 where it is cut transversely into sheets, which, in the present instance, are double width sheets. The guides 14, 15, direct these sheets successively to the grippers 12, 13, on the transfer cylinder 11. The sheets are transferred to the successive grippers 25, 26, 27 on the collecting cylinder 24. In the arrangement of the parts herein shown, each of the grippers on the cylinder 24 collects a group of four main sheets. As each set of grippers on the .collecting cylinder collects its complement of main sheets, a cover sheet, which, in the present instance 1s a double Width cover sheet, is transferred by the grippers 21 on the cylinder 20 to its `coacting set of grippers on the collecting cylinder 24. Each associated group of main and cover sheets is transferred tothe delivery cylinder grippers V29. An insert sheet, in the present instance a double insert sheet, is transferred by the grippers 19 on the cylinder 18 to the associated groupV of main and cover sheets carried by the grippers 29 on the delivery cylinder 28. A further movement of thisassociated groupof main insert and cover sheets will cause the same to be separated longitudinally bythe slitter 30 intok two groups each forming a lcomplete signature. These two groups of sheets are delivered by the opening of the grippers 29 onto the table 42. These twov groups of sheets are then moved in opposite directions transverse to the former path of the sheets. 'As both groups of sheets are subjected to the same subsequent operations, the treatment of one group of sheets only will be described. f The group of sheets is taken from the table 42 by the grippers 47 and delivered onto the stitcher table 43, the group being positively fed onto the said table by the coaction of the feeding rolls 48 with the cylinder 46. The movement of the group of sheets is arrested upon the stitcher table 43 by the stop 445 and the stitching operation is then carried out. The stop 45 is then raised and the stitched group of sheets or signature is taken by the grippers 51 on the cylinder 50 and folded off along the line of stitches by the coaction of the tucking blade 52 with the folding jaws 55. The stitched and folded signature is then carried around the cylinder 54 to the delivery carriers 57, 59, and from thence to the dropper delivery G2 which deposits the sheets onto the delivery carrier 6 It is evident that changes might be resorted toin the form, construction and arrangement of the several parts without departing from the spirit and scope of myinvention; hence I do not Wish to limit myself strictly to the structure herein shown and described, but

What'I claim is z- 1. In a machine of the character described, means for cutting sheets from a main web, means for collecting said sheets, means for associating eXtra sheets therewith, means for slitting the so collected and associated sheets lengthwise of their travel into a plurality of groups and means for leading the unfolded groups off transversely of their previous travel to different delivery points.

2. In a machine of the character described, means for cutting sheets from a main web,

means for collecting said sheets, means for associating multi cover and multi insert sheets therewith, means for slitting the so collected and associated sheets lengthwiseL of their travel into a plurality of groups4 and means for leading the unfolded groups olf transversely of their previous travel to different delivery points.

3. In a machine of the character described, means for cutting sheets from a main web, means for collecting said sheets, means for associating eXtra sheets therewith, means for slittingthe so collected and associated sheets lengthwise of their travel into a plurality of groups, means for leading the groups oif transversely of their previous travel to different delivery points and means for submeans for collecting said sheets, means for associating eXtra sheets therewith, means for slitting the so collected and associated sheets lengthwise of their travel into a plurality of groups, means for leading the unfolded groups off transversely of their travel to different delivery points and means for thereafter subjecting each group to a folding operation.

6. In a machine of the character described,

means for cutting sheets from a main web, means for collecting said sheets, means for associating multi-cover and multi-insert sheets therewith, means for slitting the so collected and associated sheets lengthwise of their travel into a plurality of groups, means for leading the unfolded groups off transversely of their previous travel to different delivery points and means for thereafter subjecting each group to a folding operation.

7. In a. machine of the character described, means for cutting sheets from a main web, means for collecting said sheets, means for associating extra sheets therewith, means for slitting the so collected and associated sheets lengthwise of their travel into a plurality of groups, means for leading the groups off transversely of their previous travel to different delivery points and means for subjecting each group to stitching and folding operations.

8. In a machine of the character described, means for cutting sheets from a main web, means for collecting said sheets, means for associating multicover and multi-insert sheets therewith, means for slitting the so collected and associated sheets lengthwise of their travel into aplurality of groups,

means for leading the groups off transversely of their previous travel to different delivery points and means for subjecting each group to stitching and folding operations.

9. In a machine of the character described, means for cutting sheets from a main web, a stationary sheet receiving table, means for collecting said sheets, means for associating extra sheets therewith, means for slitting the/so collected and associated sheets lengthwise of their travel into two groups, means for depositing them on said table andf'neans for leading the two unfolded groups off in opposite directions transversely of their previous travel to different delivery points.

10. In a machine of the character described, means for cutting sheets from a main web, a stationary sheet receiving table,

means for collecting said sheets, means'for associating multi-cover and multi-insert sheets therewith, means for slitting the so collected and associated sheets lengthwise of their travel into two groups, means for depositing them on said table and means for leading the two unfolded groups off Iin opposite directions transverselyof their previous travel to different delivery points.

11. ln a machine of the characterV described. means for cutting sheets from a main web. a sheet receiving table, means for collectingsaid sheets. means for associating extra sheets therewith. means for slitting the so collected and associated sheets lengthwise of their tra-vel into two groups, means for depositing them fon said table, means for leading the two groups oft' in opposite directions transversely of their previous travel to different delivery points, and means for subjecting each group to a stitchlng operation.

2. In a machine of the character described, means for cutting sheets from a main web, a sheet receiving table, means for collecting said sheets, means for associating multi-cover and multi-insert sheets therewith, means for slitting the so collected and associated sheets lengthwise of their travel into two groups, means for depositing them on said table, means for leading the two groups ofi in opposite direction transversely of their previous travel to different delivery points, and means for subjecting each group to a stitching operation.

13.` In a machine of the character described, means for cutting sheets from a main web, a sheet receiving table, means for collecting said sheets, means for .associating extra sheets therewith, means for slittingthe so collected and associated sheets lengthwise of their travel into two groups, means for depositing them on said table, means for leading the two groups off in opposite directions transversely of their previous travel to different delivery points, and means for subjecting each group to stitching and folding operations.

j 14. In a machine of the character kdescribed, means for cutting sheets from a main web, a. sheet receiving table, means for collecting said sheets, means for associating multicover and multi -insert sheets therewith, means for slitting the so collected and A associated sheets lengthwise of their travel into two groups, means for depositing them on said table, means for leading the two groups off in opposite directions transversely of their previous travel to different delivery points, and means for subjectingeach group to stitching and folding operations. j e

15. In a machine of the character described, a stationary sheet receiving table, means for depositingthereon two unfolded groups of collected and associated main and extra sheets and means for leading said unscribed, a sheet receiving table, means for' thereafter subjecting each unfolded to a folding operation.

depositing thereon two groupsof collected and associated main and extra sheets, means for leading said groups oif the table in opposite directions and means Vfor subjecting each group to a stitchingoperation.

18. In a machine ofthe character del depositing thereon two groupsof collected and associated main, insert and cover sheets, means. for leading the said groups off the tablein'opposite directions to different delivery points and means forsubjecting each group to a stitching operation.

A19'. In a machine of the character described, a stationary sheet receiving table,- means for depositing thereon two unfolded groups of collected and associated main and extra sheets, means for leading said unfold-- edgroups off the table in opposite directions to. different delivery points and means for group 20.' In va machine of the character det I scribed, a stationary sheet receiving table,

.'Ineans for jdepositing thereon twounfolded groups of collected and associated main, insert` and `cover sheets, means for leading 4said unfolded groups off the Atable in opposite ldirections to different delivery points and meansv for thereafter subjecting each unfolded group to a folding operation.

21. In a machine of the character described, a sheet receiving table, means forv depositing thereon two groups of collected and associated main and extra sheets, means -for leading said groups ofi' the table in opposite directions to different delivery points and means for subjecting` each group to stitching and .folding operations.

22. In a machine of the character described, a sheet receiving table, means for depositing thereon two groups of collected and associated, main, insert and cover sheets, means 'for leading said groups off the table in opposite directions to different delivery points and means for subjecting each' group to stitching and folding operations.

' 23. In a machine ofthe character described, a sheet receiving table, a collecting cylinder arranged to collect a group of main sheets thereon and associate an extra sheet therewith, a delivery Acylinder arranged to take the collected and associated ygroup from the collecting cylinder and associate another extra sheet therewith and a slitter arranged to coact with said delivery c linder to divide the group of sheets on the e elivery cylinder vinto a plurality of groups, 'said deliverycylinder being arranged to deposit the sheets onsaid table.

24. 'In a vmachine. of the character described, a sheet receiving table, a collecting cylinder arranged to collect a group of main sheets thereon and associate a cover sheet therewith, a-delivery cylinder arranged to take the group of main and cover sheets from the collecting cylinder and associate Aan insert sheet therewith and a slitter arf ranged'to coact with said dehvery cylinder to divide the group of main, insert and cover sheets into a plurality of groups, said delivery cylinder being arranged to deposit said groups on said receiving table.

25. In a machine of the character de- 1 scribed, a sheet receiving table, mainand extra sheet transfer cylinders, a collecting cylinder arranged to collect a group of main f sheets from the main sheet transfer cylinder and associate with said group an extra sheet taken from one extra sheet transfer cylinder, a delivery cylinder arranged to take the collected and associated group of sheets from the collecting cylinder and associate an* extra sheet therewith taken from the other extra sheet transfercylinder and a slitter arranged to divide the group of sheets on the deliyery cylinder into a plurality of groups, said delivery cylinder being arranged to deposit said groups of sheets on the said receiving table.

26. In a machine of the character described, a sheet receiving table, main, insert and cover sheet transfer cylinders, a collecting cylinder arranged to jcollect a group of sheets from the main sheet trans-- fer cylinder and associate with said group a sheet taken from the cover sheet transfer cylinder, a delivery cylinder arranged to takethe group of main and cover sheets and associate therewith a sheet taken from the insert sheet transfer cylinder and a slitter arranged to divide thegroup of main, insert vand cover sheets into a plurality of groups, said delivery cylinder being arcollecting, associating and longitudinally slitting-main, multi-insert and multi-cover sheets and depositing them in two groups on said table, two stitching tables and means for transferring the two groups transversely in opposite directions from the sheet receiving table onto the two stitching tables and subjecting each group to a stitching operation.

29. In a machine of the character described, a shegt receiving table, means for collecting, associating and longjtudinallyI slitting main and eXtra sheets and depositing them in two groups on said table, two stitching tables, means for transferring the two groups transversely in opposite directions from the sheet receiving table onto the two stitching tables, subjectingeach group Vto a stitching operation, and two sets of folding cylinders arranged to receive and fold the groups of sheets and deliver them to di Herent points.

F30. In a machine of the character described, a sheet receiving table, means for collecting, associating and longitudinally -slitting main, multi-insert :and multi-cover sheets and depositing them in two groups on said table, two stitching tables, means :for

transferring the two groups transversely in opposite directions from the sheet receiving table onto the two stitching tables, subjecting each group to a stitching operation, and

two sets of folding cylinders arranged to receive andv fold the groups of sheets and deliver them to different points.

31. In a machine of the character described, means for collecting and associating main and eXtra sheets and slitting them longitudinally of their travel into two groups, means for leading the two groups transversely of their previous travel in op.

f posite directions and means for stitching each group of sheets transversely Y of its travel.

32. In a machine of -the character described, means for collecting and associating main, multi-insert and multi-cover sheets and slitting them longitudinally 0fv their` travel into two groups, meansfor leading the two groups transversely of their previ- 4 ous travel in opposite directions, and means for stitching each group of sheets transversely of its travel. Y

.-33. In a machine of the character described, means for collecting and associating and slitting them longitudinally of their travel into two groups, means for leading 'the two groups transversely of theirprevious travel in opposite directions, and means for stitching and folding each group of sheets transversely of its travel.

35. A folding 0H cylinder, its grippers, a

tumbler cam mechanism arranged to openand close said grippersfor receiving a sheet and a separate cam mechanism arranged tol open the grippers to permit the folding off of the sheet, the tumbler cam mechanism being arranged to operate at one revolution of the cylinder and the other cam mechanism beingrarranged to operate at the next revolution'of the cylinder. v

In testimony, that I claim the'foregoing as vmy invention, I have signed my name, in presence of two witnesses, this 31st day of October, 1912.

y HOWARD M. BARBER.

`Witnesses: l

F. GEORGE BARRY, l C. S. SUNDGRRN. 

